Before installing the memory modules, make sure that you have updated the BIOS of your motherboard to the latest available version. This will ensure that the modules will be compatible with your mainboard.

For the stability tests we are using the Prime95 v25.6 and MemTest v3.80 software under Windows VISTA x64.

The Asus P6T motherboard we used for this test offers various dividers in order to "overclock" memory without messing up with the processor. Most of the BIOS settings were left to"Auto" mode. For the DRAM voltage, we set it at the maximum allowed value according to Intel, the 1.65V. Actually we set the voltage slightly higher at 1.66V, since the Asus motherboard doesn't offer the 1.65V option.

The memory is recognized as 1066MHz with CL7 speed, but we managed to get CL6 without any problems:

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At 1333MHz, we selected CL7 and the motherboard worked just fine and with stability:

The DDR3-1600 easily runs at CL8 and remains totally stable even at 1.66V!

In seek of the highest settings, we selected the next memory divider and the DDR3-1866 easily reached the CL9 @ 1.66V. Pushing the memory even further was not possible. Although the MemTestPro didn't report any problem, the Prime95 pushed the system into an endless reboot.

Summing up the above results and the Sisoft Sandra Memory Benchs, we see that it pushing the memory speeds result to a significantly better performance. Starting from the 1066MHz and 19.11GB/sec, we got a 26.82GB/sec with the memory running at 1600MHz.